Just simmer a teaspoon or two in water on the stove & everyone in the house will be able to breathe! You can also just open the jar & breathe or open & set it next to your bed at night, just be sure to replace the lid in the morning. This is the strongest of the sinus line & does have quite a “wow factor” when you open it. The 4 oz is great for travel or the office. Comes with one 4″×3″ natural cotton muslin bag. Put about an ounce of Sinus Salts® in the cotton bag and hang it in the shower. Last 2 weeks, you can empty & refill when necessary.